CONFIG_CRYPTO_GHASH_RISCV64 is not available for thedefaultarchitecture x86.
Result is shown for architecture 64BIT or riscv

Hash functions: GHASH

modulename: ghash-riscv64.ko

configname: CONFIG_CRYPTO_GHASH_RISCV64

Linux Kernel Configuration
└─>Accelerated Cryptographic Algorithms for CPU (riscv)
└─>Hash functions: GHASH
In linux kernel since version 6.1.89 (release Date: 2024-04-29)  
GCM GHASH function (NIST SP 800-38D)

Architecture: riscv64 using:
- Zvkg vector crypto extension

source code:
/arch/riscv/crypto/